Georg max wehkee



e. M. WEHNER.

BAND FOR SHAPING THE STRING 0F TOBACCO IN ENDWISE MOVING FILLER CIGARETTE MACHINES.

I APPLICATION FILED AUG-21, I9l3.

1 324,864. Patented Dec. 16, I919.

GEORG MAX WEHNER, OF DRES DEN', GERMANY.

BAND FOR SHAPING- THE STRING OF TOBACCO IN ENDWISE-MOVINGr-FILLER CIGARETTE-MACHINES.

Specification of Letters Patent.

Patented Dec. 1Q, 1919.

Application filed. August 21, 1913. Serial No. 785,884.

To all whom it may concern:

Be it known that I, GEORG MAX WEHNER, a subject of the King of Saxony, residing at Dresden, Germany, have invented certain new and useful Improvements in Bands for Shaping the String of Tobacco in Endwise- Moving-Filler Cigarette-Machines, of which the following is a specification.

rection of movement thereof to form or shape the string of tobacco, and thcimprove Inent consists in making the band for form.-

ing cigarettes 0f difierent thickness and of different degrees of looscness of weaving at different parts thereof, so that the pressure on the rolled tube may be varied at different portions of the band, being preferably least where the tube of the cigarette is weakest and most delicate. While the band is of different thickness and 0f difi'erent degrees of looseness of weaving along a line at right angles to its length, it is )referably of uni form thickness along a line parallel to its length, and hence is preferably endless, that is, the band forms a closed geometrical figure, so that any overlapping of severed ends is avoided. The middle portion of the band is preferably made thestrongest and most tightly woven.

In the accompanying drawings,

Figure 1 shows a top-view of the band, and

Fig. 2 is a cross section of the band taken on line 1-1 of Fig. l, and Fig. 3 is also a,

cross-section of the band.

Similar letters of reference indicate corresponding parts throughout the several figures.

Referring to the drawings, and more particularly to Fig. 1, it-wiJl be seen that in this embodiment both edges of the band are more loosely woven than the middle part thereof,

the weaving threads being designated by the letter a, and the warp threads by the letter b. The fact that the weave is looser at the edges of the band than at its central portion is clearly indicated in the drawing by the uneven spacing of the weft threads a, whlch are much closer together at said central portion'thanat the edges. As before stated, the improvement consists in making the band for forming cigarettes of different thickness and of different degrees of looseness of weavof di-iferent degreeso'fflooseness of weaving preferably of uniform thickness along a linegeometrical figure, of severed ends is hand isifmeant one so .thatany overlapping geometrical figure, in contradistinction to a band which is woven as a straight line of limited length, so that when the ends are fastened together so as to form a closed circle, the band is of greater thickness at the point of attachment at the ends thereof, whereas, as above stated, in an endless band, since all the parts of the band are connected by weaving, it is of uniform thickness along its longitudinal fibers. The middle portion of the band is preferably made the strongest and most tightly woven. It is important that the effect of the looser weaving of the edges should not be nullified by a-stronger tension of the threads of the band at those points. The loosely woven edge parts are preferably of equal strength and thickness or compactness along their longitudinal fibers, so that every line of pressure is of equal thickness'and the pressure on a given part of the tube is always the same. It will also be noted that the threads or thread runs 6 extending transversely of the band are continuous with one another, thus avoiding the presence of loose ends at the edges of the band, and strengthel'iing the edge portions accordingly. 1 g

I have described an embodiment of my in- 'vention, but it is clear that changes may be avoided. By an endless whlch is woven so as to I form a complete and closed circle, or like nr OFFICE.

along- {if-line at rightaiiglesto its length, itlis -paralh'e'l,"to its flength, and hence is' prefer ably endless, that is,ithe band form'sa closed band in which the threads extending length- 11 0 ing, sothat thepressure on the rolled tube may' be varied at different "portions of the band, being preferably least where the tube of the-:cigarette-is weakest and most delicate. Z'Wliiliithe bandis {of difi'erent'thickness and 2. A forming band for continuous cigarette machines consisting of a one-piece woven band wherein the warp threads are closely disposed in its middle portion and spaced apart in its lateral portions on opposite sides thereof, said mlddle and lateral portions being seamlessly united in a continuous single fabric from edge to edge J forming a band having tensile strength for iseesee the tobacco rod forming and wrapping operation and sensitive marginal flexibility adapting it to yield readily in contact With the overlapping edges or" the delicate cigarette wrappers and avoid injury thereto.-

In testimony,'that I claim the foregoing as n invention 1 have sio'ned in name in presence of two subscribing witnesses.

GEQRG MAX VVEHNER.

Witnesses:

OTTO WoLFr, GUsTAv Momma 

